Question

"When installing rolled groove joints, the groove width and location are essential. However, the depth of the grooves can be different."

a) True
b) False

Answer 1

The statement is false because wave amplitudes can affect each other through interference without the need for precise alignment, resulting in either constructive or destructive interference patterns.

Step-by-step explanation:

The statement 'The amplitude of one wave is affected by the amplitude of another wave only when they are precisely aligned.' is false. The amplitudes of waves can affect each other through a phenomenon known as interference. Interference occurs when two waves meet and combine to form a new wave pattern. There are two types of interference - constructive and destructive.

In constructive interference, the crests of two waves align, resulting in a wave with a higher amplitude compared to the original waves. Conversely, in destructive interference, the crest of one wave aligns with the trough of another, which can result in a wave with reduced amplitude or even complete cancellation.

The combination of waves and the resulting interference pattern does not require the waves to be 'precisely aligned'; even partially overlapping waves will interact, and their amplitudes can influence each other to varying degrees depending on how they overlap.